Infineon Technologies S29AL008J55TFIR10
- Part No.:
- S29AL008J55TFIR10
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
S29AL008J55TFIR10.pdf
- Description:
- IC FLASH 8MBIT PARALLEL 48TSOP
- Quantity:
- Payment:

- Shipping:

Inventory:1,607
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Product details
Overview
S29AL008J55TFIR10 from Infineon Technologies (formerly Cypress) is an 8-Mbit, 3.0 V-only boot sector Flash memory organized as 1 M × 8-bit or 512 K × 16-bit, featuring 55 ns access time, AEC-Q100 Grade 1 qualification (–40°C to +125°C), and flexible sector architecture with one 16 KB, two 8 KB, one 32 KB, and fifteen 64 KB sectors. It supports in-system programming via standard 3.0 V VCC, includes Secured Silicon Sector with factory-programmable 128-word electronic serial number, and is used in automotive engine control units for firmware storage and update.
For engineers reviewing the S29AL008J55TFIR10 datasheet, S29AL008J55TFIR10 pinout, S29AL008J55TFIR10 application, or S29AL008J55TFIR10 equivalent, key selection considerations include boot-block configuration (top/bottom), sector protection granularity, CFI compliance for host auto-configuration, erase suspend/resume capability for real-time firmware patching, and 48-ball VFBGA package compatibility with automotive PCB layout constraints.
Technical Context
The S29AL008J55TFIR10 implements a command-register-driven state machine for embedded erase and program algorithms, eliminating need for external high-voltage supplies. It uses Fowler-Nordheim tunneling for erase and hot-electron injection for program operations, with internal voltage regulation enabling full 2.7–3.6 V operation.
Hardware features include RY/BY# for cycle completion signaling, RESET# for immediate state-machine reset to read mode, and WP# for hardware-level boot-sector write protection. The device supports both byte (x8) and word (x16) data interfaces via DQ15/A-1 and BYTE# pin, with JEDEC-compliant command set and CFI descriptor table accessible at fixed address offsets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 × 8 or 524,288 × 16), enabling storage of full MCU boot code and parameter tables in single device |
| Access Time (tACC) | 55 ns max - eliminates wait states for 18 MHz+ microcontrollers in automotive timing-critical applications |
| Supply Voltage Range | 2.7–3.6 V - supports wide battery voltage range in automotive systems without external regulators |
| Cycling Endurance | 1,000,000 cycles/sector - sufficient for over-the-air firmware update cycles across 15-year vehicle lifetime |
| Data Retention | 20 years typical at 125°C - meets automotive long-term reliability requirements under hood temperature stress |
| Operating Temperature | –40°C to +125°C (AEC-Q100 Grade 1) - qualified for engine control module placement near powertrain |
| Power Consumption | 0.2 µA standby/sleep current - enables low-power keep-alive firmware monitoring during vehicle sleep mode |
Pinout & Package
Package: 48-ball Fine-pitch VFBGA (8.15 mm × 6.15 mm × 1.00 mm, 0.8 mm pitch), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | 19-bit address bus supporting full 1 Mbyte addressing in byte mode or 512 Kword in word mode |
| DQ0–DQ14 | Data I/O (x8/x16) | Bi-directional data path; DQ15/A-1 serves as LSB address in byte mode or MSB data in word mode |
| BYTE# | Bus Width Select | Active-low input selecting 8-bit (BYTE# = L) or 16-bit (BYTE# = H) data interface configuration |
| CE#, OE#, WE# | Chip/Output/Write Enable | Independent controls eliminate bus contention; CE# gating reduces power during inactive periods |
| WP# | Hardware Write Protect | Protects top or bottom 16 KB boot sector depending on configuration - prevents accidental firmware overwrite |
| RY/BY# | Ready/Busy Output | Open-drain active-low signal indicating active program/erase - enables hardware interrupt-driven status polling |
| RESET# | Hardware Reset | Asynchronous reset to read mode - synchronizes device state with system power-on reset sequence |
Key Features
| Feature | Design Value |
|---|---|
| Erase Suspend/Resume | Enables real-time reading or programming of non-erasing sectors during background erase - critical for dual-bank firmware updates |
| Secured Silicon Sector | 128-word factory- or customer-programmable region with 8-word random serial number - provides immutable device identity for secure boot verification |
| Unlock Bypass Mode | Reduces multi-byte programming time by 50% vs. standard command sequence - accelerates field firmware patch deployment |
| CFI Compliance | Standardized query table at 0x0055/0x0055 enables automatic host software detection of geometry, timing, and command set - simplifies driver portability across Flash families |
| Automatic Sleep Mode | Enters 0.2 µA state after 200 ns address stability - eliminates need for explicit power-down commands in low-duty-cycle telemetry logging |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance System (ADAS) Camera Module |
|---|---|
|
Use Scenario: Stores calibrated sensor fusion algorithms and real-time control maps updated via CAN FD during vehicle service. IC Role / Device Role / Timing Role: Non-volatile boot memory with AEC-Q100 Grade 1 qualification and 55 ns access for deterministic startup timing. Use Value: Sector protection prevents corruption of safety-critical calibration data during partial firmware updates. |
Use Scenario: Holds camera ISP firmware and lens distortion correction tables requiring field-upgradable persistence. IC Role / Device Role / Timing Role: Boot-sector Flash with erase suspend enabling concurrent image capture and firmware patching. Use Value: CFI support allows same bootloader to auto-detect and configure multiple camera variants in production line. |
| Electric Power Steering (EPS) Controller | Automotive Gateway Module |
|
Use Scenario: Stores torque assist profiles and fault history logs updated during vehicle ignition cycles. IC Role / Device Role / Timing Role: High-reliability Flash with 1M endurance cycles and 20-year data retention at 125°C. Use Value: Secured Silicon Sector stores unique motor calibration ID for anti-counterfeit traceability in supply chain. |
Use Scenario: Hosts gateway firmware managing CAN/LIN/FlexRay protocol translation and OTA update staging. IC Role / Device Role / Timing Role: Dual-boot capable Flash with top/bottom configuration supporting fail-safe firmware rollback. Use Value: WP#-enabled boot sector protection ensures primary bootloader remains intact during secondary firmware download. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boot-sector Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S29GL01GP12FHIV10 | 1 Gbit density, 110 nm process, 100 ns access, supports 1.8/3.0 V dual supply | Higher density for complex gateway firmware; lacks Secured Silicon Sector | Select when >128 MB code space required and secure serial number not needed |
| MX29GL008ETXGI-90G | 8 Mbit, 90 ns access, 2.7–3.6 V, no CFI support, no erase suspend | Lower cost for non-automotive industrial use; no AEC-Q100 qualification | Select for cost-sensitive consumer electronics where automotive reliability not required |
Compared with S29AL008J55TFIR10, the S29GL01GP12FHIV10 offers greater capacity but sacrifices secure identification and real-time erase flexibility, while the MX29GL008ETXGI-90G reduces cost and performance at the expense of automotive-grade reliability and advanced firmware management features.
Availability
S29AL008J55TFIR10 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, electric power steering controllers, and automotive gateway modules requiring stable component supply with long lifecycle support.
Supply support for S29AL008J55TFIR10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and security solutions with vertical manufacturing and automotive qualification expertise.
The S29AL008J belongs to Infineon's legacy Cypress Flash memory product line, designed specifically for automotive and industrial embedded systems requiring high-reliability, in-system programmable non-volatile storage with hardware-based security and real-time firmware update capabilities.
FAQ
Is S29AL008J55TFIR10 pin-compatible with earlier S29AL008D devices?
Yes, the S29AL008J55TFIR10 maintains identical pinout and software command compatibility with the S29AL008D, including TSOP and BGA packages. It is manufactured on 110 nm process but retains full functional and mechanical equivalence per Infineon's continuity documentation, enabling drop-in replacement without board redesign.
What is the function of the BYTE# pin in practical system design?
The BYTE# pin selects between 8-bit and 16-bit data bus operation: pulled low for x8 mode (DQ7–DQ0 active), high for x16 mode (DQ15–DQ0 active). In x16 mode, DQ15/A-1 functions as data bit 15; in x8 mode, it becomes address bit A-1 for extended addressing. This enables flexible integration with 8-bit or 16-bit microcontrollers without external glue logic.
How does the Secured Silicon Sector support secure boot implementation?
The Secured Silicon Sector contains a factory-programmed or customer-programmable 128-word region with an 8-word random electronic serial number. When locked, this region is permanently read-only and immune to erase or program commands. Bootloader code can read this ID to authenticate firmware signature or validate hardware origin before executing application code.
Can WP# protect only the boot sector, or does it affect other sectors?
WP# exclusively protects the top or bottom 16 KB boot sector - determined by device configuration - and has no effect on remaining sectors. Other sectors require software-based sector group protection commands or hardware lock bits. This selective protection ensures critical boot code remains safeguarded while allowing runtime updates to application sectors.
S29AL008J55TFIR10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- AL-J
- Package/Case:
- 48-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8, 512K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 55ns
- Access Time:
- 55 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSOP
S29AL008J55TFIR10 FAQ
1.How can I place an order for S29AL008J55TFIR10 through Aetrix?
Please submit a Request for Quotation (RFQ) for S29AL008J55TFIR10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S29AL008J55TFIR10 reliable?
The price and inventory of S29AL008J55TFIR10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S29AL008J55TFIR10 is usually 5 days.
3.What payment methods are accepted for S29AL008J55TFIR10?
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4.How is shipping managed for S29AL008J55TFIR10?
S29AL008J55TFIR10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S29AL008J55TFIR10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S29AL008J55TFIR10?
For technical support, including S29AL008J55TFIR10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S29AL008J55TFIR10 requirements.
6.How does Aetrix verify that S29AL008J55TFIR10 is sourced from the original manufacturer or authorized distributors?
All S29AL008J55TFIR10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S29AL008J55TFIR10 meets industry standards.
7.What is the process for return or replacement of S29AL008J55TFIR10?
All S29AL008J55TFIR10 units undergo pre-shipment inspection (PSI). If there is an issue with S29AL008J55TFIR10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S29AL008J55TFIR10 part is unused and in its original packaging.
Return procedure for S29AL008J55TFIR10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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